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21 April 2023 | Story Leonie Bolleurs | Photo Supplied
Dr Katlego Mashiane
Striving to make a difference in the field of biodiversity conservation, Dr Katlego Mashiane decided to pursue a PhD in Geography, focusing on the spatial modelling of grassland diversity and nutrients in subalpine environments. He received his PhD during the recent April graduation ceremonies on the Qwaqwa Campus.

In the small village of Ga-Mabotia about 25 km outside of Polokwane, Dr Katlego Mashiane grew up, surrounded by rocky mountains characterised by boulder outcrops, where he interacted with nature from an early age. 

He recently obtained his PhD, majoring in Geography, from the University of the Free State (UFS), which was conferred on him during the April graduation ceremonies that took place on the UFS Qwaqwa Campus. The title of his dissertation is Grass nutrients estimation as an Indicator of rangeland quality using satellite remote.

Predicting the presence of biodiversity and nutrients in an area

Based on the principle that diverse grasslands tend to perform better, environmental changes threaten the resilience and services these grassland ecosystems provide. The study examined how many different types of plants and animals can be found at a particular place to enhance our understanding of the ecosystem’s value to humans, and that biodiversity loss will reduce these ecosystem services. Focusing on spatial modelling of grassland diversity, Dr Mashiane specifically investigated the influence of topography and remotely sensed satellite data on species richness and diversity in subalpine environments, and how they are affected by the availability of grass species. To determine this, he used a random forest machine-learning algorithm to find the best information in the data that could be used to estimate the levels of species richness, diversity, and nitrogen in a protected national conservation park. 

His study discovered that some data types – such as the near-infrared variable and certain vegetation data (EVI and SAVI) – were especially useful for determining the number and variety of species in a certain area. With this information, scientists can create models that predict the presence of different types of biodiversity and nutrients in an area.

Playing a key role in protecting our natural assets

Equipped with this knowledge, one will be able to understand how to protect and preserve different types of biodiversity and promote the nutritional value of both plants and animals in the environment. “Land managers could use this information for conservation strategies,” states Dr Mashiane, who decided to pursue this study because he was curious about how environmental changes will affect species.

“Grasslands provide important ecosystem services underpinning human well-being, and therefore warrant our protection; I would like to play a role in protecting our natural assets and contribute to understanding our biomes, especially in the context of global change,” he says.

In the next five years, Dr Mashiane plans to pursue further research and mentor other students in his field of study.

News Archive

‘I’d rather wake up at 8’clock for nothing than to sit at home’
2015-08-26


Tawanda Kaseke is on a mission to give back to the community one holiday at a time.

Studying towards a degree is one aspect of being a student. Investing time in worthwhile extra-mural activities forms a significant part of your student years. Tawanda Kaseke demonstrates how volunteering time to a good cause makes for a responsible student and citizen.

 

The second-year Public Administration student’s moral obligation to community development led him to spend approximately two months of his June 2015 holidays volunteering. Serving as a volunteer Admin intern at Afrika Tikkun’s ignited his aspiration to assist children from underprivileged communities to access education.

 

From cradle to career: a journey from infancy to varsity and beyond

 

Afrika Tikkun is a non-profit organisation (NGO) that works toward a future where today’s children and youth are tomorrow’s productive citizens. The NGO adopts a cradle-to-career model, which invests in the development of disadvantaged children from early infancy through young adulthood into the world of work.

 

Raising funds for the “Like Change” movement – a division of the “From Cradle to Career” project - is Tawanda’s primary objective for his November to February summer vacation.

 

Tawanda encourages social media users to contribute by clicking on the “Like” option on the ‘Like Change’ Facebook page.  A private company automatically donates R35 towards the education of an underprivileged child on your behalf.

 

Making your mark begins with a dot; university holidays are Tawanda’s dot. A passion for community development and a willingness to volunteer one’s time can go a long way in making South Africa a better place.

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